Pluteus insidiosus Complex, Four New Species Described and Pluteus reisneri Resurrected

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  • Hana Sevcikova
  • Giuliano Ferisin
  • Ekaterina Malysheva
  • Alfredo Justo
  • Heilmann-Clausen, Jacob
  • Egon Horak
  • Lyudmila Kalinina
  • Oguzhan Kaygusuz
  • Henning Knudsen
  • Nelson Menolli
  • Pierre-Arthur Moreau
  • Guillermo Munoz Gonzalez
  • Irja Saar
  • Ibrahim Türkekul
  • Francesco Dovana

We studied the taxonomy of Pluteus insidiosus and similar species using morphological and molecular (nrITS, TEF1-alpha) data, including a detailed study of the type collection of P. insidiosus. Based on our results, we recognize five species in this group: P. insidiosus sensu stricto and four other taxa: P. assimilatus; P. farensis; P. flavostipitatus; and P. pseudoinsidiosus; described here as new. All these taxa are distinct from each other based on molecular data, but some of them are semi-cryptic based on morphology and co-occur in the Palaearctic region. An additional molecular lineage, phylogenetically separates from the P. insidiosus complex, but with many morphological similarities, was recognized in the molecular phylogenies. Based on the revision of available type collections, the name Pluteus reisneri Velen., was adopted for this Clade. Pluteus reisneri was validly published in 1921, but it has barely been used since its original description. A modern epitype, with molecular data, was selected for P. reisneri.

Original languageEnglish
Article number623
JournalJournal of Fungi
Issue number6
Number of pages26
Publication statusPublished - 2022

    Research areas

  • Agaricales, new species, Palaearctic, Pluteaceae, type study, AGARICALES, PLUTEACEAE, PHYLOGENY, BASIDIOMYCOTA, CELLULODERMA, TAXONOMY, NUCLEAR

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